此外走进尾桨或主旋翼是一个安全关切的旁观者。
Additionally walking into the tail rotor or main rotor is a safety concern for bystanders.
报告还称，它配备了新型引擎和复合主旋翼叶片。
The reports also state that it is fitted with a new type of engine and composite main rotor blades.
直升飞机有一个五浆叶主旋翼和一个四浆叶尾旋翼。
The helicopter has a five-blade main rotor and a four-blade tail rotor.
转子叶片：全金属的主旋翼或尾旋翼材质，是被禁止的。
Rotor blades: All-metal main or tail rotor blades are prohibited.
垂直安装的引擎，该引擎作为第二阶段的减速齿轮齿形带主旋翼。
Vertically mounted engine driving main rotor via toothed belt as second-stage reduction gear.
它使用一个安装在后面的推进式螺旋桨并有一对一上一下反向旋转的主旋翼。
The X2 uses a pusher propeller mounted at the rear and has a pair of contra-rotating main rotors, one positioned above the other.
每次飞完检查主旋翼头和尾旋翼头的螺丝螺母是一个很好的习惯。
It is a good practice to check the bolts and nuts on the main rotor head and tail rotor after every flight.
为适应舰载和空运的要求，“铺路鹰”采用了可折叠的主旋翼和尾桨。
For shipboard operations and to ease air transportability Pave Hawks are equipped with folding rotor blades and tail stabilator.
执行后退侧滚时，请控制主旋翼的螺距，以便维持固定的高度及速度。
Use collective control to maintain constant altitude and speed. Fly away from the maneuver straight and level.
这意味着它能像直升机一样悬停，但向前飞时可能减少主旋翼的速度并让这两个短翼提供部分提升力。
This means it can hover like a helicopter, but when flying forwards can reduce the speed of the main rotor and let the wings provide part of the lift.
安排副翼、降舵及主旋翼螺距的打舵时机，使得直升机能保持固定的高度、进方向及速度。
Time the input of the cyclic& collective commands such that the helicopter maintains constant altitude, direction& speed.
它由两个喷气涡轮引擎提供动力，以驱动五个叶片的主旋翼，以及通过齿轮箱和连轴驱动在两边短翼上的一对螺旋桨。
It is powered by two jet-turbine engines which operate both the five-bladed main rotor and, through a gearbox and shafts, a pair of propellers on two short wings.
这意味着它能像一架直升机那样作空中悬停，而在向前飞行时，又能降低主旋翼的速度，因为它的一对短翼提供了部分升力。
This means it can hover like a helicopter, but when flying forward can reduce the speed of the main rotor because the wings provide part of the lift.
主旋翼是直升机建模的关键，详细讨论了与其相关的翼型气动力模型、 诱导速度模型和挥舞运动模型的建模方法。
Main rotor is the key part of helicopter modeling, the associated modeling methods of aerofoil aerodynamic loads, rotor inflow dynamics and blade flap motion are discussed in detail.
第八名：贝尔uh - 1IROQUOIS(惠)是一种军用直升机搭载单涡轮轴发动机，具有双桨叶主旋翼和尾桨。
Number 8. BELL UH-1 IROQUOIS (HUEY) is a military helicopter powered by a single turboshaft engine, with a two-bladed main rotor and tail rotor.
立方直升机的这种配置让他可以像直升机一样盘旋，但在向前飞行时，主旋翼的转速可以将下来，让两侧的机翼提供升力，在此情况下，两台螺旋桨推进器就能发挥大作用了。
This means it can hover like a helicopter, but when flying forwards can reduce the speed of the main rotor and let the wings provide part of the lift. Its propellers give the extra oomph.
最后的设计具有一个主旋转器，也就是旋翼。
最后的设计具有一个主旋转器，也就是旋翼。
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